Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
538148453Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1157188453152441907692166.62015-11-07 13:28:37
History
DateUserTypeResult
2015-11-07Alexander DubrovinF
Factor: 115718845315244190769 / TF: 66-67
2014-11-07sasakiNF
no factor from 2^65 to 2^66